Box plots (AQA GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What are the five key values in a box plot?
What are the five key values in a box plot?
Minimum, Q₁, median, Q₃, and maximum values.
What is the formula to find the median position?
What is the formula to find the median position?
Median position = (n + 1) / 2, where n is the count.
What does a longer box in a box plot indicate?
What does a longer box in a box plot indicate?
More spread in the middle 50% of the data.
How do you calculate Q₁ position?
How do you calculate Q₁ position?
Use the formula: (n + 1) / 4 for quartile position.
What does the whisker length in a box plot show?
What does the whisker length in a box plot show?
The spread of extreme values relative to quartiles.
What does a median closer to Q₁ indicate about data skew?
What does a median closer to Q₁ indicate about data skew?
The data is skewed towards lower values.
What is the first step in constructing a box plot?
What is the first step in constructing a box plot?
Order your data from smallest to largest.
What does the box in a box plot represent?
What does the box in a box plot represent?
The middle 50% of your data values.
How do you find the upper quartile (Q₃)?
How do you find the upper quartile (Q₃)?
Use the formula: 3(n + 1) / 4 for quartile position.
What is the significance of the median line's position?
What is the significance of the median line's position?
It indicates the shape of the data distribution.